Do you think it would be safe to just bury my pack beneath rocks? I'm thinking it would have to be a pretty serious covering to keep critters off. I'm sure marmots are pretty good at digging since they live in areas like that.

Thanks for the tips. I may see if I can bring along some sort of container to keep some food in. Will marmots go for food that is totally sealed still? Like backcountry meals? I don't see how they could smell that but human's sense of smell is horrible so I dunno haha.